Well PE cap for dex is 36-40mil for level 80 dex (I think) so if you went 100mil over that its say 140mil to cap + woc.
Vs
Spy cap for dex is 157mil to level 100 dex.
So 140mil (PE WOC) vs 160mil (Spy 100 Dex). If you are soloing you don't get your points spread between all your stats as far as im aware. Of course Spys would get an advantage of higher level drones in my example such as being able to use punishers (though both can use the RK drones given enough drugs and imps). So likely chance is given my theory that a PE if you only had to 100mil overcap to woc, could do before a spy could reach basic cap.